135404372397 has 8 divisors (see below), whose sum is σ = 206330472256. Its totient is φ = 77373927072.

The previous prime is 135404372359. The next prime is 135404372407. The reversal of 135404372397 is 793273404531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135404372397 - 2¹⁴ = 135404356013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135404372317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3223913608 + ... + 3223913649.

It is an arithmetic number, because the mean of its divisors is an integer number (25791309032).

Almost surely, 2^135404372397 is an apocalyptic number.

It is an amenable number.

135404372397 is a deficient number, since it is larger than the sum of its proper divisors (70926099859).

135404372397 is an equidigital number, since it uses as much as digits as its factorization.

135404372397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6447827267.

The product of its (nonzero) digits is 1905120, while the sum is 48.

The spelling of 135404372397 in words is "one hundred thirty-five billion, four hundred four million, three hundred seventy-two thousand, three hundred ninety-seven".